Convert between Indian (lakh, crore, arab) and Western (million, billion, trillion) number systems instantly.
Last updated: March 2, 2026
Convert between Indian (lakh, crore, arab) and Western (million, billion, trillion) number systems instantly. This tool runs in-browser for fast results without account setup.
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1 crore = 10 million. So ₹1 crore = ₹10 million = ₹10,000,000.
1 lakh = 100 thousand = 100,000. The word 'lakh' comes from the Sanskrit 'laksha'.
India's lakh-crore system comes from the Vedic numbering tradition. After thousands, numbers are grouped in twos (not threes), giving lakh (10⁵), crore (10⁷), arab (10⁹), etc.
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| Indian / भारतीय | Number | Western / पश्चिमी |
|---|---|---|
| 1 हज़ार (Hazaar) | 1,000 | 1 Thousand |
| 1 लाख (Lakh) | 1,00,000 | 100 Thousand |
| 10 लाख | 10,00,000 | 1 Million |
| 1 करोड़ (Crore) | 1,00,00,000 | 10 Million |
| 10 करोड़ | 10,00,00,000 | 100 Million |
| 1 अरब (Arab) | 1,00,00,00,000 | 1 Billion |
| 1 खरब (Kharab) | 1,00,00,00,00,000 | 100 Billion |
| 1 नील (Neel) | 1,00,00,00,00,00,000 | 1 Trillion |
India uses a unique number grouping system based on the Vedic numbering tradition: after the first three digits (thousands), numbers are grouped in twos — so 10,00,000 (ten lakh) instead of 1,000,000 (one million). This system is used across South Asia (India, Pakistan, Bangladesh, Nepal, Sri Lanka) in daily commerce, media, government budgets, and financial reporting. The system extends to अरब (arab, 10⁹), खरब (kharab, 10¹¹), and नील (neel, 10¹³).